More often than not, well-known parts stores misinform customers. One of the most common misdiagnosis for Volkswagens is that a new catalytic converter is necessary because an O2 code setting is off or the check engine light is on. This is a time consuming and expensive mistake. To accurately diagnose a problem with your VW, more is required than reading codes on a computer. Our facility is staffed with highly trained and certified technicians -- they've heard and seen the results of a bad diagnosis or bad business practices. When you're looking for a trusted VW mechanic, click here to get the right diagnosis from the best Volkswagen repair service in Marin County.